<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>输入类型：password</title>
</head>
<body>

<form action="">
  User name:<br>
  <input type="text" name="userid">
  <br>
  User password:<br>
  <input type="password" name="psw">
</form>

<p>密码字段中的字符被掩码（显示为星号或圆点）。</p>

</body>
</html>